missile.java

来自「J2SE坦克大战源码 分为24个版本」· Java 代码 · 共 64 行

import java.awt.*;

public class Missile {
	
	int x;
	int y;
	MyTank.Direction dir;
	public static final int XSPEED = 11;
	public static final int YSPEED = 11;
	public static final int WI = 11;
	public static final int HE = 11;

	
	public Missile(int x, int y, MyTank.Direction dir) {
		this.x = x;
		this.y = y;
		this.dir = dir;
	}
	
	public void draw(Graphics g){
		Color c = g.getColor();
		g.setColor(Color.BLACK);
		g.fillOval(x, y, 11, 11);
		g.setColor(c);		
		
		move();
	}
	
	public void move(){	
		switch(dir){
		case U:
			y -= YSPEED;
		break;
		case RU:
			x += XSPEED;
			y -= YSPEED;
		break;
		case R:
			x += XSPEED;
		break;
		case RD:
			x += XSPEED;
			y += YSPEED;
		break;
		case D:
			y += YSPEED;
		break;
		case LD:
			x -= XSPEED;
			y += YSPEED;
		break;
		case L:
			x -= XSPEED;
		break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
		break;
		case STOP:		
		break;
		}	
	}
}